refactor: moved suggester to own file, cleanup

src/DataviewSuggester.ts

@@ -0,0 +1,80 @@
+import { App, Editor, Plugin, EditorPosition, EditorSuggest, EditorSuggestContext, EditorSuggestTriggerInfo, TFile } from 'obsidian';
+
+export class DataviewSuggester extends EditorSuggest<String> {
+	app: App
+
+	constructor(plugin: Plugin) {
+		super(plugin.app)
+	}
+
+	onTrigger(
+		cursor: EditorPosition,
+		editor: Editor,
+		file: TFile,
+	): EditorSuggestTriggerInfo | null {
+		const line = editor.getLine(cursor.line);
+		const regex = /\((.*?)\)/g  // todo min characters for match? -> research on best practices
+		
+		let match
+		while((match = regex.exec(line)) !== null) {
+
+			// check if cursor is positioned inside the match
+			const cursorInMatch = cursor.ch > match.index && cursor.ch <= match.index + match[1].length + 1
+			if (cursorInMatch) {
+
+				return {
+					start: { line: cursor.line, ch: match.index+1 },
+					end: { line: cursor.line, ch: match.index + match[1].length+1 },
+					query: match[1],
+				};
+			}
+
+		} 
+		return null;
+	}
+
+	getSuggestions(context: EditorSuggestContext): string[] | Promise<string[]> {
+		const suggestions: string[] = []
+		// TODO use official dv api?
+		// @ts-ignore
+		for (const page of this.app.plugins.plugins.dataview.index.pages) {
+			const fields = page[1].fields
+			for (let [key, val] of fields) {
+				let arrayVal
+				if (!Array.isArray(val)) {
+					arrayVal = [val]
+				} else {
+					arrayVal = val
+				}
+
+				for (const value of arrayVal) {
+					// TODO whitespace in match
+					// Fuzzy matching?
+					const suggestion = key + ":: " + value
+					if (suggestion.includes(context.query) && !suggestions.includes(suggestion)) {
+						suggestions.push(key+ ":: " + value)
+					}
+				}
+			}
+
+		}
+		console.log(suggestions)
+		return suggestions
+	}
+
+	renderSuggestion(value: string, el: HTMLElement): void {
+		el.setText(value)
+	}
+
+	selectSuggestion(value: string, evt: MouseEvent | KeyboardEvent): void {
+		console.log("selected", value)
+		const { editor, start, end } = this.context!;
+		editor.replaceRange(value, start, end);
+
+		const newCursorPos = {
+			line: end.line + 1,
+			ch: 0,
+		};
+		editor.setCursor(newCursorPos);
+	}
+}